C1458C DATASHEET PDF

DESCRIPTION. The LM and the LM are general purpose dual operational amplifiers. The two amplifiers share a common bias network and power. CC Datasheet, CC PDF, UPCC. Part Number, CC. Manufacturer, NEC. Short Description, UPCC. Long Description, www. CC UPCC Components datasheet pdf data sheet FREE from Datasheet (data sheet) search for integrated circuits (ic).

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I would have to know the part number to answer your question with certainty. I went out a purchased a couple of op amps from Radio Shack and built a comparator like the first one on this page. Can I use a pen or mechanical pencil Posted by coonsaa0 in forum: This action pulls the positive end of the transformer secondary supplying the 15V DC down slightly.

If the opamp is in a socket, why not try testing it on the bench? You May Also Like: Could this finally be the dawn of room-temperature superconductors? Here are my voltage readings for the -8 section.

C1458C Datasheet

In the meantime, I will use the values you have measured. Nov 13, 8. This will help dataseet confusion since replying members will be less likely to be confused. Nov 13, 3. Apr 5, 18, 3, Nov 13, 2. This causes the output of the opamp to go positive which drives the base of transistor Q which in turns drives the base of Q positive.

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I can’t seem to find a datasheet for a CC, but the pinouts on the schematic agree with the above opamps. Jul 17, 22, 1, What voltage do you measure across capactors C and C?

Oct 29, 7, 3, Nov 13, 4. A Non-Invasive Glucose Sensor Researchers believe that sweaty armpits may be the answer to both detecting and controlling diabetes.

CC(IC) NTE Equivalent NTEA dual operational amp – Wholesale Electronics

That is because in both cases the ground reference is not a direct connection to ground. I have it working. Quote of the day. Your name or email address: I could probably ramp the voltages up to 15 VDC if that is recommended.

Nov 13, This results in a restoration of the -8volt output so that the droop due to the increased load is cancelled. Actually the voltage measurement I dwtasheet like you to make is the voltage across the terminals of the capacitor.

Bottom line, compare the datasheets of the op amps for compatability. You placed your DVM probes on the negative and positive terminals of the capacitor and the voltages you posted are the ones you read.

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I have included the PS schematic below. Can I use a flyback transformer in a forward topology? Yes, my password is: Spinaker, You will notice that I have merged the newer post with the older post since the second datashert was a continuation of the first. But would want to run ti by the folks here anyway. Posted by Gamedojo in forum: Can U use 2 datasheef in place of a relay to switch 2 different voltages Posted by icadj in forum: You might find that one or datasheet of the transistors connected to the output is shorted.

Nov 13, 7. Nov 13, 9. Do you already have an dataasheet The voltage you measured across C was around 15 volts. Nov 13, 1. Is this a good enough test for U A and B in t his schematic?

Can we use a tristate buffer in place of voltage level shifter? Jan 28, 9, I really do not datashet if one of these is the best choice. Nov 16, 1, That can be remedied.